Image Compressor & Resizer Online
Compress JPG, PNG, WebP to 20KB, 50KB, 100KB and resize image by width/height. 100% private - runs in your browser, no upload.
Compress Options
Resize Options
Compressed Result
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What Is the Image Compressor and Resizer?
This tool reduces the file size of JPG, PNG and WebP images and lets you change their width and height. Smaller images load faster on websites and fit the size limits that many online forms set, such as 20 KB, 50 KB or 100 KB. Check your form's instructions for the exact size and dimensions it needs.
Compression and resizing run in your browser, so your images are not uploaded to our server. JPG and WebP compression is lossy, which means some detail is removed to make the file smaller. Always keep your original image.
How to Compress and Resize an Image
- Click Upload Image and choose a JPG, PNG or WebP file.
- Set the Quality. 80% is a good starting point. Lower it for a smaller file.
- Choose the Output Format. WebP usually gives the smallest file.
- Optional: pick a Target Size such as 20 KB, 50 KB, 100 KB or 200 KB.
- Optional: enter a Width or Height in pixels. Keep Aspect Ratio avoids stretching.
- Click Compress & Resize Image, check the result, then click Download Compressed Image.
How to Reach a Small Target Size
- Resize first. A smaller width and height reduce the file size the most.
- Use JPG or WebP. PNG is lossless, so the quality slider has little effect on it.
- Lower the quality step by step, for example from 80% to 70% and then 60%.
- Check the result. Make sure text and faces are still clear before you download.
Which Format Should I Use?
| Format | Best for | Keep in mind |
|---|---|---|
| JPG | Photos, and most online forms | Lossy. Has no transparency. |
| PNG | Screenshots, logos and images with transparency | Lossless, so files stay large. Quality slider has little effect. |
| WebP | Websites, where small files matter | Often smaller than JPG. Some forms and older software may not accept it. |
Common Image Sizes
| Use | Common starting point |
|---|---|
| Blog or website image | 1200 px wide |
| Social media share image | 1200 × 628 px |
| Thumbnail or profile photo | 300 × 300 px |
| Online form upload | Use the size and dimensions given in the form's instructions |
These are common starting points, not strict rules.
Why Use the WebToolsKit Image Compressor?
- Compress and resize in one place: Set quality, format, target size and dimensions together.
- See the saving: Compare the original and compressed size before you download.
- Private by design: Images are processed in your browser and are not uploaded to our server.
Frequently Asked Questions
1. How do I compress an image to 20 KB or 50 KB?
Upload the image, choose JPG or WebP as the output format, select a Target Size such as 20 KB or 50 KB, and click Compress. If the file is still too large, reduce the width and height, or lower the quality. Check that the image still looks clear.
2. Are my images uploaded to a server?
No. Compression and resizing run in your browser, and your images are not uploaded to our server. Use the tool on a device you trust.
3. Can I resize an image to a specific width and height?
Yes. Enter the width and height in pixels. Keep Aspect Ratio avoids stretching. Turn it off if you need an exact size.
4. Which format gives the best compression?
WebP often gives smaller files than JPG at similar quality. Many online forms accept only JPG, so check the form's rules before choosing WebP.
5. Will the quality decrease?
JPG and WebP compression is lossy, so some detail is lost. At higher quality the change is hard to see, and at lower quality you may see blur. Always compare the result with the original.
6. Why is my PNG not getting smaller?
PNG is a lossless format, so the quality slider has little effect. Resize the image, or convert it to JPG or WebP. Converting to JPG removes transparency.
7. Does the tool remove photo details such as location?
Saving an image again through the browser usually drops EXIF details such as camera model and location. Check your downloaded file if this matters to you.